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Neuro
notes from qbank
42
Medical
Graduate
06/10/2012

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Term
What is the major cause of morbidity and mortality in patients with subarachnoid hemorrhage?
Definition
- Vasospasm of the arteries at the base of the brain. Signs of ischemia usually appear in about 7 days. Calcium channel blockers like nimodipine are used to prevent vasospasm.
Term
frequency of the Parkinson's tremor?
Definition
4-5 hz
Term
wtf is trihexyphenidyl?
Definition
- an anticholinergic medication sometimes used in the treatment of Parkinson's, generally in younger patients where tremor is the primary symptom.
Term
Of all the risk factors, which has the strongest association with stroke?
Definition
Hypertension
- HTN increases the risk of all types of stroke
- ppl with HTN are 4 times more likely to have a stroke
Term
Characteristic features of NF1:
Definition
- cafe-au-lait spots
- macrocephaly
- feeing problems
- short stature
- learning disablities.
- patients may later develop fibromas, neurofibromas, or different tumors.
Term
7 contraindications for triptans:
Definition
1. familial hemiplegic migraine
2. uncontrolled hypertension
3. CAD
4. Prinzmetal angina
5. pregnancy
6. ischemic stroke
7. basilar migraine
Term
Nerve affected in an anterior shoulder dislocation?
Definition
axillary nerve in the quadrangular space. This will cause paralysis of the deltoid and teres minor muslces as well as los of sensation on the lateral upper arm.
Term
What does + pronator drift mean?
Definition
- Upper motor neuron lesion; the naturally stronger pronators is exaggerated in pts c upper motor neuron dysfunction.
Term
wtf is progressive multifocal leukoencephalopathy?
Definition
- an opportunistic infection seen in immunocompromised patients. It is caused by the JC virus, and mode of transmission is unkown.
- PML predominantly involves the cortical white matter, with brainstem and cerebellum seen too.
- The MC presenting symptoms are hemiparesis and disturbances in speech, vision, and gait. CNs too.
Term
wtf is multiple system atrophy?
Definition
- the same as Shy Drager syndrome
- a degenerative process characterized by:
1. parkinsonism
2. autonomic disfunction
3. widespread neurological signs
Term
What is the treatment of choice for absence seizures?
Definition
ethosuximide or valproic acid
Term
What characterizes a complex partial seizure?
Definition
- a brief episode of impaired consciousness, failure to respond to various stimuli during the episode, staring spells, automatisms (lip smacking, swallowing, picking movements) and post-ictal confusion.
- The EEG is usually normal or may show brief discharges. NB: hyperventilation will not simulate the seizures.
Term
What is Lennox-Gastaut syndrom?
Definition
- usually presents in childhood with seizures of multiple types, impaired cognitive function, and slow spike-and-wave activity on EEG.
Term
Pt presents with acute motor and sensory loss in his legs, loss of rectal tone, and urinary retention.
Definition
Cauda equina syndrome. = surgical emergency.
Term
drug that has long term disease modifying effects in MS:
Definition
- Glatiramer acetate
- beta interferon
Term
What is the treatment for acute exacerbations of MS?
Definition
- corticosteroids
Term
What cranial nerve is affected in uncal herniation?
Definition
Oculomotor
- compression causes loss of parasympathetic innervation early, with loss of motor innervation later.
Term
Senior patient comes for evaluation of "decreased memory." On further evaluation she has urinary incontinence, and broad-based shuffling gait. What is the next step?
Definition
- MRI. The classic presentation of normal pressure hydrocephalus is dementia, urinary reteniton, and gait disturbance. Lumbar puncture reveals normal CSF pressure, and MRI shows enlarged ventricles.
Term
What is a common neurological finding after years of chronic alcoholism?
Definition
- Cerebellar disfunction. Watch for gait instability and intention tremor in addition to classical cerebellar findings.
Term
Young female with bilateral trigeminal neuralgia:
Definition
- suspect MS
Term
I say myasthenia, you say:
Definition
THYMOMA!
Term
How do you treat Guillain-Bare?
Definition
- IVIG and plasmapheresis
Term
MCC of brain abscess in an immunocompetant patient with known extracranial bacterial infection?
Definition
- Aerobic and anaerobic streptococci, bacteroides spp (anaerobes).
Term
Four cardinal symptoms of restless leg syndrome:
Definition
1. an uncomfortable sensation or urge to move the legs
2. discomfort which worsens in the evening or during sleep
3. discomfort which worsens at rest
4. discomfort alleviated by movement of the affected limbs
Term
What does treatment for restless leg focus on?
Definition
- increasing dopamine with dopaminergic agonists like pramipexole and ropinerole.
Term
Pt presents with weakness and broad, flat T waves:
Definition
- hypokalemia
Term
Stroke: motor impairment without any higher cortical dysfunction and visual field abnormalities.
Definition
- posterior limb of the internal capsule
Term
Contralateral hemiplegia, conjugate eye deviation toward the side of infarct, hemianesthesia, homonymous hemianopia, *aphasia or hemineglect*
Definition
MCA
Term
Contralateral weakness that predominantly affects the LE, abulia, akinetic mutism, emotional diturbances, deviation of head and eyes toward the lesion, sphincter incontinence.
Definition
ACA
Term
'alternate' syndromes, with contralateralhemiplegia and ipsilateral CN involement.
Definition
- Vertebrobasilar system (brainstem)
Term
Pt with Huntington's, where is the lesion?
Definition
- atrophy of the caudate nucleus
Term
MCC of fatal sporadic encephalitis in the US?
Definition
- HSV encephalitis. Which is also 10-20% of all viral encephalitis.
Term
Why do you see increased RBCs in the CSF in HSV encephalitis?
Definition
- hemorrhagic destruction of the temporal lobes
Term
What are the most common early side effects of beginning treatment for Parkinsons?
Definition
- hallucinations, confusion, agitation, dizziness, somnolence, nausea
Term
DDx of seeing halos around lights:
Definition
- acute angle closure glaucoma
- dig toxicity
- migraine?
Term
What is 'riluzole'?
Definition
- a glutamate inhibitor that has been approved for patients with ALS.
Term
- What is the most powerful modifiable risk factor for pancreatic cancer?
Definition
- smoking cessation
Term
NOT risk factors for pancreatic cancer:
Definition
1. alcohol
2. gallstones
3. coffee intake
Term
What are the CSF findings in HSV encephalitis?
Definition
- increased lymphocytes
- increased protein
- elevated RBCs (hemorrhage)
- normal glucose
Term
I say humoral mid-shaft fracture, you say:
Definition
- Radial nerve injury
Term
"Crossed paralysis," or hemiparalysis with contralateral facial weakness in a stroke patient:
Definition
- the lesion is most likely the facial nerve nucleus in the pons.
Term
Adolescent patient has a seizure after sleep deprivation:
Definition
- Juvenile mioclonic epilepsy. These usually present in their teenage years with a progression from absence to myoclonic to generalized tonic-clonic seizures. The seizures typically occur upon awakening, and symptoms can be worsened by sleep deprivation.
- JME is genetic
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